/Engine/Plugins/Experimental/Animation/PoseSearch/Source/Runtime/Public/PoseSearch/AnimNode_BlendStack.h
void Initialize ( [UAnimationAsset](API\Runtime\Engine\Animation\UAnimationAsset) * AnimationAsset, float AccumulatedTime, bool bLoop, bool bMirrored, [UMirrorDataTable](API\Runtime\Engine\Animation\UMirrorDataTable) * MirrorDataTable, float BlendTime, float RootBoneBlendTime, const [UBlendProfile](API\Runtime\Engine\Animation\UBlendProfile) * BlendProfile, EAlphaBlendOption InBlendOption, FVector BlendParameters, float PlayRate )